Commitments and Contingencies - Additional Information (Details) $ in Millions		12 Months Ended
	Feb. 02, 2011	Jan. 28, 2017 USD ($)	Jan. 30, 2016 USD ($)	Jan. 31, 2015 USD ($)	Dec. 31, 2006 USD ($) Period
Commitments and Contingencies [Line Items]
Extension of lease term					5 years
Occupancy costs, automobile and leased equipment expense		$ 63.9	$ 62.0	$ 56.8
Lease agreement term					20 years
Sale leaseback transaction rent expense					$ 4.6
Sale leaseback transaction deferred gain					$ 29.3
Leased asset amortization period					20 years
Operating leases renewal option, number of successive lease periods | Period					6
Percentage of increase in annual rent on base rate	7.00%
Current annual rent		5.2
Amortization of deferred gain		1.5
Merchandise purchase obligation, fiscal 2017		10.5
Merchandise purchase obligation, fiscal 2018		11.0
Merchandise purchase obligation, fiscal 2019		$ 11.5
Minimum
Commitments and Contingencies [Line Items]
Store lease term		5 years
Extension of lease term		5 years
Maximum
Commitments and Contingencies [Line Items]
Store lease term		10 years
Extension of lease term		10 years